Showing a bluff

Is it ever a good idea to show a bluff in a Sit'n'Go ?
I just did that in a 3$ sit'n'go at the start in the hopes to get a bad image for when the good arrive I can benefit from it, which I did this time around.
But is it a good idea to do that again ?

This what the particular hand :
Me in BB with
Q
J
button called, SB called

Some people called me a bluffer, and they called a later set and straight with middle pair, maybe because they're just plain bad, maybe because of the image.
Now, is it a good idea to do something like this again in the lowest Sit'n'gos where people think to have read ability but usually don't ?

I don't think that this is a good idea because in a SnG from time to time you have to bluff and if you have a bluffer image that won't work. Just don't show any hand you don't have to show. Don't give away information your opponents could use against you.